Cisco OL-11528-01 User Manual
Page 15
8-15
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager
OL-11528-01
Chapter 8 Monitoring the Cisco Unified IP Phone Remotely
Streaming Statistics
Rcvr Packets
Total number of RTP data packets received by the phone since starting
receiving data on this connection. Includes packets received from different
sources if this is a multicast call. The value displays as 0 if the connection was
set to send-only mode.
Rcvr Octets
Total number of payload octets received in RTP data packets by the device
since starting reception on the connection. Includes packets received from
different sources if this is a multicast call. The value displays as 0 if the
connection was set to send-only mode.
MOS LQK
Score that is an objective estimate of the mean opinion score (MOS) for
listening quality (LQK) that rates from 5 (excellent) to 1 (bad). This score is
based on audible concealment events due to frame loss in the preceding
8-second interval of the voice stream. For more information, see the
“Monitoring the Voice Quality of Calls” section on page 9-21
.
Note
The MOS LQK score can vary based on the type of codec that the
Cisco Unified IP Phone uses.
Avg MOS LQK
Average MOS LQK score observed for the entire voice stream.
Min MOS LQK
Lowest MOS LQK score observed from start of the voice stream.
Max MOS LQK
Baseline or highest MOS LQK score observed from start of the voice stream.
These codecs provide the following maximum MOS LQK score under normal
conditions with no frame loss:
•
G.711 gives 4.5
•
G.729 A /AB gives 3.7
MOS LQK Version
Version of the Cisco proprietary algorithm used to calculate MOS LQK
scores.
Cumulative Conceal
Ratio
Total number of concealment frames divided by total number of speech
frames received from start of the voice stream.
Interval Conceal Ratio
Ratio of concealment frames to speech frames in preceding 3-second interval
of active speech. If using voice activity detection (VAD), a longer interval
might be required to accumulate 3 seconds of active speech.
Max Conceal Ratio
Highest interval concealment ratio from start of the voice stream.
Table 8-5
Streaming Statistics Area Items (continued)
Item
Description